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This image is part of a series that was created for an open textbook, Cardiovascular Pathophysiology for Pre-Clinical Students. The textbook will be available Summer 2022.
Preferred citation:
Kindred Grey (2022). "Schematics of normal WPW syndrome conductivity pathways." CC BY 4.0.
Other contributions to this image:
None
Alternative text:
Two diagrams of the conductive pathways of the heart are shown. The first is normal, with an arrow showing normal transition of the action potential through the AV node into and around the ventricular myocardiaum. The second heart diagram shows two arrows from the AV node - one taking the normal conductive pathway into the ventricles, the other travelling across the atrium and passing through the atrial-ventricular spetum throught an aberrent pathway into the ventricles. This abberent pathway causes the WPW syndrome. EKGs below each heart diagram show a normal EKG associated with the normal conductive pathway, but with the WPW pathway the associated EKG shows a delta wave which is seen as a slower rise to the QRS complex compared to the sharp depolarization seen in the normal EKG.
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